Kenshi Yonezu's 'IRIS OUT' has reclaimed the No. 1 spot on the Billboard Japan Hot 100 for its 11th week overall. The track, serving as the theme for The Chainsaw Man – The Movie: Reze Arc, saw gains in downloads, streaming, and video views. It also maintained its lead on the Global Japan Songs Excl. Japan chart.
Kenshi Yonezu's 'IRIS OUT' rebounded to the summit of the Billboard Japan Hot 100 on the chart released December 24, covering the tracking week from December 15 to 21. This marks the song's 11th total week at No. 1, with week-over-week increases of 114% in downloads, 102% in streaming, and 101% in video views.
As the theme for The Chainsaw Man – The Movie: Reze Arc, the track continues to dominate internationally as well. It held No. 1 for a 13th consecutive week on the Global Japan Songs Excl. Japan chart dated December 18, despite combined video and audio streams outside Japan totaling 9.86 million, just shy of 10 million.
The rest of the top five featured sales-driven debuts. At No. 2, 'Are wa Fairy' from Bokuga Mitakatta Aozora's seventh single sold 120,035 copies, ranking No. 2 in sales and No. 3 in radio airplay. Panda Dragon's 'Winter Song Boeitai,' the title track of their 13th single, entered at No. 3 with 131,384 copies sold, leading in sales but lagging in other metrics. OCTPATH's 'Starlight Rendezvous,' from their eighth single, debuted at No. 4 with 85,717 copies, placing No. 3 in sales.
Rounding out the top five, HANA's 'NON STOP' slipped to No. 5, with downloads at 54% of the previous week, streaming at 81%, and radio airplay at 75%.
Elsewhere, back number experienced a resurgence with 12 tracks on the chart. 'Christmas Song' rose 123% in total points, 'Heroine' 109%, and 'Suiheisen' 108%. Notably, their 2011 release 'Shiawase' charted for the first time.
The Billboard Japan Hot 100 aggregates physical and digital sales, audio streams, radio airplay, video views, and karaoke data.